Method of heading sheet-metal cans.



No 848,005. PATENTED MAR. 26, 1907.

' J. BRBNZINGBR. METHOD OF HEADING SHEET METAL CANS.

APPLIUATION. FILED MAR.17, 1966.

MM dw an a UNITED STA S PATENT OFFICE.

JULIUS BRENZINGER, or MOUNT vERNori, NEW YORK, ASSIGNOR TO THE MAX AMS MACHINE COMPANY, OF MOUNT VERNON, NEW YORK, A COR- 'PORATION OF NEW YORK.-

METHOD OF HEADING SHEET-METAL CANS Specification of Letters Patent.

Patented March 26, 1907.

Application filed March 17.1906. Serial No. 806,535.

To all whom, it 711,117 concern.-

Be it known that I, JULIUS BRENZINGER, a citizen of the United States, residing at Mount Vernon, Westchester county, State of New York, have invented new and useful Improvements in Methodsof Heading Sheet- Metal Cans, of which the following is a specification. I

This invention relates to improved means for efi'ectin a preliminary conneotionbetween the head and the body of a sheet metal can before said-parts are permanently united by a can heading or seaming-machine. Thus any shifting of the head before and during the seamin operation is avoided, spilling is prevente and the manipulation of the can during the seaming operation is facilitated.

In the accompanying, drawing, Figure 1 is a perspective View of a round can headed ac cordi to my invention, showing the posi-f tion 0 the parts before the seam is turned down. Fig. 2 is an enlarged cross-section on line 2 2, Fig. -1; Fig. 3, a similar'section'on" line 3 '3, Fig. 1; and Fig. 4 is a section on line 2 2, Fig. 1, showing the position of the parts after the seam is turned down. I

The can-bod 4 is fla ed, as at 5, while the countersu coveror ead 6 .has a flange 7, which is supported upon flange 5 and projects over the same, as at 8.5;In order to effect the temporary connection desired, the flange 7 is clenched or bent at sf litable points,

so as to there become interlocked with flan e 1 5, Fig. 3. The points 9 at which the clenc ing operation takes place should be spaced or distanced from each other, the flange-sections between the clenched points retaining. their original shape. In this way the flanges are not i slocated to an extent which would the end of the cover-fla e 7 is folded around the can-flange 5, so as to e brought sidewise" against the can-body and bejinterposed between such body and its turned-down flange 5. Thus there is formed a continuous doublesearn or lock-joint, Fig. 4, which forms a permanent connection between the can and vits coven The drawing shows the invention applied to a round can clenched at four uniformlyspaced oints; but it'is evident that the num be! an relative position of such points may be varied andthat the invention may also be applied to angular, oblong, and differently- I ,-.shaped'-cans. I

'WhatjIclair-n is Method of heading sheet-metal cans which consists in placin a flanged cover on a flanged can-body, clenchlng the, cover-fie e to the body-flan e at spaced points, and t en turning downioth flanges along their entire cir-' cumference, to fold the cover-flange around the can-flange and interpose said cover-flange sidewise between the can-bodyand the canflange, substantially as specified. Signed b me at New York city, (Manhattan,) New ork, this 15th day of March, 1906.

WILLIAM SonULz', FRANK v. BRmsEN. 

